<!DOCTYPE html>
<html>
<head>
   <meta charset="UTF-8">
   <title>直播</title>
</head>
<body>

  <script>
      setTimeout(() => {
          console.log('a');
      }, 1000);

      setTimeout(() => {
          console.log('b');
      }, 100);
  </script>
</body>
</html>

